What is battery internal resistance?
It refers to the resistance of current flowing through the battery when the battery is working. It consists of ohmic internal resistance and polarization internal resistance. The large internal resistance of the battery will lead to the reduction of the battery discharge working voltage and the reduction of the discharge time. The internal resistance is mainly affected by the battery material, manufacturing process, battery structure and other factors. It is an important parameter to measure battery performance. Note: The internal resistance in charge state is generally taken as the standard. The internal resistance of the battery shall be measured with a special internal resistance meter, but not with the ohm gear of a multimeter.
What is the nominal/Rated voltage?
The nominal voltage of the battery refers to the voltage displayed in the normal working process. The nominal voltage of the secondary nickel-cadmium nickel-hydrogen battery is 1.2V; The nominal voltage of secondary lithium battery is 3.6V.
What is open-circuit voltage?
Open-circuit voltage refers to the potential difference between the positive and negative poles of the battery when the battery is in non-operating state, that is, when there is no current flowing through the circuit. Working voltage, also known as terminal voltage, refers to the potential difference between the positive and negative poles of the battery when there is current in the circuit.
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